Muscles of the Le<i 



339 



384. 



Muscles of the 

 right thigh, 



viewed from behind. 



M. semiteudinosus (see 



also Figs. 385 and 388). 

 Form: triangular, long, ta- 

 pering below . Position: 

 on the posterior surface of 

 the thigh; behind, in large 

 part, superficial, covered only 

 above by the ra. glutaeus 

 maximus: lateralward it is 

 bounded by the caput longum 

 m. bicipitis, medianward by 

 the iiim. adductor mag-nus and 

 semimembranosus , in front 

 by the m. adductor magnus. 

 Origin: tendinous from the 

 tuber ischiadicum. in common 

 with the caput longum ra. 

 bicipitis f bursa m. bicipitis 

 femoris supei'ior see Fig. 386 

 and p. 34|). Insertion: it 

 nms converging downward, 

 then lies with a long tendon 

 in a furrow of the m. semi- 

 membranosus and extends 

 from there behind the tendon 

 of the m. gracilis and in 

 common with it , in a curve, 

 forward to the tuberositas 

 tibiae (see ra. sartorius p. 331) 

 (bursa anserina see Fig. 378). 

 Action: it extends the thigh 

 backward, flexes the leg and 

 rotates it at the same time in- 

 ward. Innervation: n. ti- 

 bialis. 



M. semimembranosus 



(see also Figs. 379, 385, 386 

 and 388). Form: flat, oblong- 

 quadrangular. Position: on 

 the posterior surface of the 

 thigh ; below, partly just be- 

 neath the skin, otherwise 

 covered by the ra. seraitendi- 

 nosus; lateralward below it 

 is bounded by the m. biceps, 

 in fi-ont by the mm. quadra- 

 tus femoris, adductor magnus 

 and gracilis. Origin: by a 

 flat, long, strong tendon from 

 the tuber ischiadicum (bursa 

 m. bicipitis femoris stiperior 

 see Fig. 386 and p. 343). 

 (Continued on p. 340.) 



M. 



adductor 

 magnus 



M. gracilis 



M. 



semimem- 

 branosus 



M. 



semimem- 

 branosus 



M. semi- 

 teudinosus 



M. gracilis 

 M. sartorius 



M. glutaeus medius 



M. glutaeus 

 maximus 



Situation o 

 the trochant 

 major 



Cutis' 



Traetus iliotibial 



[Maissiati] 



M. biceps femoris 

 (caput longum) 



!^^. semiteudinosus 



M. biceps femoris 

 (caput breve) 



M. planlaris 



Tendo m. bicipitis femoris 

 -^l. gastrocnemius 



